Trait FromMessageParts 

pub trait FromMessageParts<A: Adapter>: Sized {
    type Error: Error + 'static;

    // Required method
    fn from_message_parts(
        s: &Arc<Socket<A>>,
        v: &mut Value,
        ack_id: &Option<i64>,
    ) -> Result<Self, Self::Error>;
}

A trait used to extract arguments from the message event. The Result associated type is used to return an error if the extraction fails, in this case the handler is not called.

• See the message module doc for more details on message handler.
• See the extract module doc for more details on available extractors.

Required Associated Types

type Error: Error + 'static

The error type returned by the extractor

Required Methods

fn from_message_parts( s: &Arc<Socket<A>>, v: &mut Value, ack_id: &Option<i64>, ) -> Result<Self, Self::Error>

Extract the arguments from the message event. If it fails, the handler is not called.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<A: Adapter, T: Clone + Send + Sync + 'static> FromMessageParts<A> for Extension<T>

Available on crate feature extensions only.

type Error = ExtensionNotFound<T>

impl<A: Adapter, T: Clone + Send + Sync + 'static> FromMessageParts<A> for HttpExtension<T>

type Error = ExtensionNotFound<T>

impl<A: Adapter, T: Clone + Send + Sync + 'static> FromMessageParts<A> for MaybeExtension<T>

Available on crate feature extensions only.

type Error = Infallible

impl<A: Adapter, T: Clone + Send + Sync + 'static> FromMessageParts<A> for MaybeHttpExtension<T>

type Error = Infallible

impl<A: Adapter, T: Clone + Send + Sync + 'static> FromMessageParts<A> for State<T>

Available on crate feature state only.

type Error = StateNotFound<T>

impl<A: Adapter> FromMessageParts<A> for AckSender<A>

type Error = Infallible

impl<A: Adapter> FromMessageParts<A> for ProtocolVersion

type Error = Infallible

impl<A: Adapter> FromMessageParts<A> for SocketIo<A>

type Error = Infallible

impl<A: Adapter> FromMessageParts<A> for SocketRef<A>

type Error = Infallible

impl<A: Adapter> FromMessageParts<A> for TransportType

type Error = Infallible

impl<A> FromMessageParts<A> for Event

where A: Adapter,

type Error = ParserError

impl<T, A> FromMessageParts<A> for Data<T>

where T: DeserializeOwned, A: Adapter,

type Error = ParserError

impl<T, A> FromMessageParts<A> for TryData<T>

where T: DeserializeOwned, A: Adapter,

type Error = Infallible